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secur32: If using cached credentials failed in InitializeSecurityContext then fail...
[wine/multimedia.git] / dlls / secur32 / ntlm.c
blob423a1674d52000ca3c82c4d048a9f3703529c30d
1 /*
2 * Copyright 2005, 2006 Kai Blin
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 *
18 * This file implements the NTLM security provider.
19 */
20
21 #include <assert.h>
22 #include <stdarg.h>
23 #include <stdio.h>
24 #include "windef.h"
25 #include "winbase.h"
26 #include "winnls.h"
27 #include "rpc.h"
28 #include "sspi.h"
29 #include "lm.h"
30 #include "secur32_priv.h"
31 #include "hmac_md5.h"
32 #include "wine/debug.h"
33
34 WINE_DEFAULT_DEBUG_CHANNEL(ntlm);
35
36 #define NTLM_MAX_BUF 1904
37 #define MIN_NTLM_AUTH_MAJOR_VERSION 3
38 #define MIN_NTLM_AUTH_MINOR_VERSION 0
39 #define MIN_NTLM_AUTH_MICRO_VERSION 25
40
41 static CHAR ntlm_auth[] = "ntlm_auth";
42
43 typedef struct _NtlmCredentials
44 {
45 HelperMode mode;
46
47 /* these are all in the Unix codepage */
48 char *username_arg;
49 char *domain_arg;
50 char *password; /* not nul-terminated */
51 int pwlen;
52 } NtlmCredentials, *PNtlmCredentials;
53
54 /***********************************************************************
55 * QueryCredentialsAttributesA
56 */
57 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesA(
58 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
59 {
60 SECURITY_STATUS ret;
61
62 TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
63
64 if(ulAttribute == SECPKG_ATTR_NAMES)
65 {
66 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
67 ret = SEC_E_UNSUPPORTED_FUNCTION;
68 }
69 else
70 ret = SEC_E_UNSUPPORTED_FUNCTION;
71
72 return ret;
73 }
74
75 /***********************************************************************
76 * QueryCredentialsAttributesW
77 */
78 static SECURITY_STATUS SEC_ENTRY ntlm_QueryCredentialsAttributesW(
79 PCredHandle phCredential, ULONG ulAttribute, PVOID pBuffer)
80 {
81 SECURITY_STATUS ret;
82
83 TRACE("(%p, %d, %p)\n", phCredential, ulAttribute, pBuffer);
84
85 if(ulAttribute == SECPKG_ATTR_NAMES)
86 {
87 FIXME("SECPKG_CRED_ATTR_NAMES: stub\n");
88 ret = SEC_E_UNSUPPORTED_FUNCTION;
89 }
90 else
91 ret = SEC_E_UNSUPPORTED_FUNCTION;
92
93 return ret;
94 }
95
96 /***********************************************************************
97 * AcquireCredentialsHandleW
98 */
99 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleW(
100 SEC_WCHAR *pszPrincipal, SEC_WCHAR *pszPackage, ULONG fCredentialUse,
101 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
102 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
103 {
104 SECURITY_STATUS ret;
105 PNtlmCredentials ntlm_cred = NULL;
106 SEC_WCHAR *username = NULL, *domain = NULL;
107
108 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
109 debugstr_w(pszPrincipal), debugstr_w(pszPackage), fCredentialUse,
110 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
111
112 switch(fCredentialUse)
113 {
114 case SECPKG_CRED_INBOUND:
115 ntlm_cred = HeapAlloc(GetProcessHeap(), 0, sizeof(*ntlm_cred));
116 if (!ntlm_cred)
117 ret = SEC_E_INSUFFICIENT_MEMORY;
118 else
119 {
120 ntlm_cred->mode = NTLM_SERVER;
121 ntlm_cred->username_arg = NULL;
122 ntlm_cred->domain_arg = NULL;
123 ntlm_cred->password = NULL;
124 ntlm_cred->pwlen = 0;
125 phCredential->dwUpper = fCredentialUse;
126 phCredential->dwLower = (ULONG_PTR)ntlm_cred;
127 ret = SEC_E_OK;
128 }
129 break;
130 case SECPKG_CRED_OUTBOUND:
131 {
132 static const char username_arg[] = "--username=";
133 static const char domain_arg[] = "--domain=";
134 int unixcp_size;
135
136 ntlm_cred = HeapAlloc(GetProcessHeap(), 0, sizeof(*ntlm_cred));
137 if (!ntlm_cred)
138 {
139 ret = SEC_E_INSUFFICIENT_MEMORY;
140 break;
141 }
142 ntlm_cred->mode = NTLM_CLIENT;
143 ntlm_cred->username_arg = NULL;
144 ntlm_cred->domain_arg = NULL;
145 ntlm_cred->password = NULL;
146 ntlm_cred->pwlen = 0;
147
148 if(pAuthData != NULL)
149 {
150 PSEC_WINNT_AUTH_IDENTITY_W auth_data =
151 (PSEC_WINNT_AUTH_IDENTITY_W)pAuthData;
152
153 TRACE("Username is %s\n", debugstr_wn(auth_data->User, auth_data->UserLength));
154 TRACE("Domain name is %s\n", debugstr_wn(auth_data->Domain, auth_data->DomainLength));
155
156 /* Get username and domain from pAuthData */
157 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
158 auth_data->User, auth_data->UserLength, NULL, 0, NULL, NULL) + sizeof(username_arg);
159 ntlm_cred->username_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
160 memcpy(ntlm_cred->username_arg, username_arg, sizeof(username_arg) - 1);
161 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, auth_data->User, auth_data->UserLength,
162 ntlm_cred->username_arg + sizeof(username_arg) - 1,
163 unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
164 ntlm_cred->username_arg[unixcp_size - 1] = '\0';
165
166 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
167 auth_data->Domain, auth_data->DomainLength, NULL, 0, NULL, NULL) + sizeof(domain_arg);
168 ntlm_cred->domain_arg = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
169 memcpy(ntlm_cred->domain_arg, domain_arg, sizeof(domain_arg) - 1);
170 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, auth_data->Domain,
171 auth_data->DomainLength, ntlm_cred->domain_arg + sizeof(domain_arg) - 1,
172 unixcp_size - sizeof(domain) + 1, NULL, NULL);
173 ntlm_cred->domain_arg[unixcp_size - 1] = '\0';
174
175 if(auth_data->PasswordLength != 0)
176 {
177 ntlm_cred->pwlen = WideCharToMultiByte(CP_UNIXCP,
178 WC_NO_BEST_FIT_CHARS, auth_data->Password,
179 auth_data->PasswordLength, NULL, 0, NULL,
180 NULL);
181
182 ntlm_cred->password = HeapAlloc(GetProcessHeap(), 0,
183 ntlm_cred->pwlen);
184
185 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
186 auth_data->Password, auth_data->PasswordLength,
187 ntlm_cred->password, ntlm_cred->pwlen, NULL, NULL);
188 }
189 }
190
191 phCredential->dwUpper = fCredentialUse;
192 phCredential->dwLower = (ULONG_PTR)ntlm_cred;
193 TRACE("ACH phCredential->dwUpper: 0x%08lx, dwLower: 0x%08lx\n",
194 phCredential->dwUpper, phCredential->dwLower);
195 ret = SEC_E_OK;
196 break;
197 }
198 case SECPKG_CRED_BOTH:
199 FIXME("AcquireCredentialsHandle: SECPKG_CRED_BOTH stub\n");
200 ret = SEC_E_UNSUPPORTED_FUNCTION;
201 phCredential = NULL;
202 break;
203 default:
204 phCredential = NULL;
205 ret = SEC_E_UNKNOWN_CREDENTIALS;
206 }
207
208 HeapFree(GetProcessHeap(), 0, username);
209 HeapFree(GetProcessHeap(), 0, domain);
210
211 return ret;
212 }
213
214 /***********************************************************************
215 * AcquireCredentialsHandleA
216 */
217 static SECURITY_STATUS SEC_ENTRY ntlm_AcquireCredentialsHandleA(
218 SEC_CHAR *pszPrincipal, SEC_CHAR *pszPackage, ULONG fCredentialUse,
219 PLUID pLogonID, PVOID pAuthData, SEC_GET_KEY_FN pGetKeyFn,
220 PVOID pGetKeyArgument, PCredHandle phCredential, PTimeStamp ptsExpiry)
221 {
222 SECURITY_STATUS ret;
223 int user_sizeW, domain_sizeW, passwd_sizeW;
224
225 SEC_WCHAR *user = NULL, *domain = NULL, *passwd = NULL, *package = NULL;
226
227 PSEC_WINNT_AUTH_IDENTITY_W pAuthDataW = NULL;
228 PSEC_WINNT_AUTH_IDENTITY_A identity = NULL;
229
230 TRACE("(%s, %s, 0x%08x, %p, %p, %p, %p, %p, %p)\n",
231 debugstr_a(pszPrincipal), debugstr_a(pszPackage), fCredentialUse,
232 pLogonID, pAuthData, pGetKeyFn, pGetKeyArgument, phCredential, ptsExpiry);
233
234 if(pszPackage != NULL)
235 {
236 int package_sizeW = MultiByteToWideChar(CP_ACP, 0, pszPackage, -1,
237 NULL, 0);
238
239 package = HeapAlloc(GetProcessHeap(), 0, package_sizeW *
240 sizeof(SEC_WCHAR));
241 MultiByteToWideChar(CP_ACP, 0, pszPackage, -1, package, package_sizeW);
242 }
243
244
245 if(pAuthData != NULL)
246 {
247 identity = (PSEC_WINNT_AUTH_IDENTITY_A)pAuthData;
248
249 if(identity->Flags == SEC_WINNT_AUTH_IDENTITY_ANSI)
250 {
251 pAuthDataW = HeapAlloc(GetProcessHeap(), 0,
252 sizeof(SEC_WINNT_AUTH_IDENTITY_W));
253
254 if(identity->UserLength != 0)
255 {
256 user_sizeW = MultiByteToWideChar(CP_ACP, 0,
257 (LPCSTR)identity->User, identity->UserLength, NULL, 0);
258 user = HeapAlloc(GetProcessHeap(), 0, user_sizeW *
259 sizeof(SEC_WCHAR));
260 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->User,
261 identity->UserLength, user, user_sizeW);
262 }
263 else
264 {
265 user_sizeW = 0;
266 }
267
268 if(identity->DomainLength != 0)
269 {
270 domain_sizeW = MultiByteToWideChar(CP_ACP, 0,
271 (LPCSTR)identity->Domain, identity->DomainLength, NULL, 0);
272 domain = HeapAlloc(GetProcessHeap(), 0, domain_sizeW
273 * sizeof(SEC_WCHAR));
274 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Domain,
275 identity->DomainLength, domain, domain_sizeW);
276 }
277 else
278 {
279 domain_sizeW = 0;
280 }
281
282 if(identity->PasswordLength != 0)
283 {
284 passwd_sizeW = MultiByteToWideChar(CP_ACP, 0,
285 (LPCSTR)identity->Password, identity->PasswordLength,
286 NULL, 0);
287 passwd = HeapAlloc(GetProcessHeap(), 0, passwd_sizeW
288 * sizeof(SEC_WCHAR));
289 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)identity->Password,
290 identity->PasswordLength, passwd, passwd_sizeW);
291 }
292 else
293 {
294 passwd_sizeW = 0;
295 }
296
297 pAuthDataW->Flags = SEC_WINNT_AUTH_IDENTITY_UNICODE;
298 pAuthDataW->User = user;
299 pAuthDataW->UserLength = user_sizeW;
300 pAuthDataW->Domain = domain;
301 pAuthDataW->DomainLength = domain_sizeW;
302 pAuthDataW->Password = passwd;
303 pAuthDataW->PasswordLength = passwd_sizeW;
304 }
305 else
306 {
307 pAuthDataW = (PSEC_WINNT_AUTH_IDENTITY_W)identity;
308 }
309 }
310
311 ret = ntlm_AcquireCredentialsHandleW(NULL, package, fCredentialUse,
312 pLogonID, pAuthDataW, pGetKeyFn, pGetKeyArgument, phCredential,
313 ptsExpiry);
314
315 HeapFree(GetProcessHeap(), 0, package);
316 HeapFree(GetProcessHeap(), 0, user);
317 HeapFree(GetProcessHeap(), 0, domain);
318 HeapFree(GetProcessHeap(), 0, passwd);
319 if(pAuthDataW != (PSEC_WINNT_AUTH_IDENTITY_W)identity)
320 HeapFree(GetProcessHeap(), 0, pAuthDataW);
321
322 return ret;
323 }
324
325 /*************************************************************************
326 * ntlm_GetTokenBufferIndex
327 * Calculates the index of the secbuffer with BufferType == SECBUFFER_TOKEN
328 * Returns index if found or -1 if not found.
329 */
330 static int ntlm_GetTokenBufferIndex(PSecBufferDesc pMessage)
331 {
332 UINT i;
333
334 TRACE("%p\n", pMessage);
335
336 for( i = 0; i < pMessage->cBuffers; ++i )
337 {
338 if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
339 return i;
340 }
341
342 return -1;
343 }
344
345 /*************************************************************************
346 * ntlm_GetDataBufferIndex
347 * Calculates the index of the first secbuffer with BufferType == SECBUFFER_DATA
348 * Returns index if found or -1 if not found.
349 */
350 static int ntlm_GetDataBufferIndex(PSecBufferDesc pMessage)
351 {
352 UINT i;
353
354 TRACE("%p\n", pMessage);
355
356 for( i = 0; i < pMessage->cBuffers; ++i )
357 {
358 if(pMessage->pBuffers[i].BufferType == SECBUFFER_DATA)
359 return i;
360 }
361
362 return -1;
363 }
364
365 /***********************************************************************
366 * InitializeSecurityContextW
367 */
368 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextW(
369 PCredHandle phCredential, PCtxtHandle phContext, SEC_WCHAR *pszTargetName,
370 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
371 PSecBufferDesc pInput, ULONG Reserved2, PCtxtHandle phNewContext,
372 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
373 {
374 SECURITY_STATUS ret;
375 PNtlmCredentials ntlm_cred = NULL;
376 PNegoHelper helper = NULL;
377 ULONG ctxt_attr = 0;
378 char* buffer, *want_flags = NULL;
379 PBYTE bin;
380 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
381 int token_idx;
382 SEC_CHAR *username = NULL;
383
384 TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
385 debugstr_w(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
386 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
387
388 /****************************************
389 * When communicating with the client, there can be the
390 * following reply packets:
391 * YR <base64 blob> should be sent to the server
392 * PW should be sent back to helper with
393 * base64 encoded password
394 * AF <base64 blob> client is done, blob should be
395 * sent to server with KK prefixed
396 * GF <string list> A string list of negotiated flags
397 * GK <base64 blob> base64 encoded session key
398 * BH <char reason> something broke
399 */
400 /* The squid cache size is 2010 chars, and that's what ntlm_auth uses */
401
402 if (pszTargetName)
403 {
404 TRACE("According to a MS whitepaper pszTargetName is ignored.\n");
405 }
406
407 if(TargetDataRep == SECURITY_NETWORK_DREP){
408 TRACE("Setting SECURITY_NETWORK_DREP\n");
409 }
410
411 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
412 bin = HeapAlloc(GetProcessHeap(), 0, sizeof(BYTE) * NTLM_MAX_BUF);
413
414 if((phContext == NULL) && (pInput == NULL))
415 {
416 static char helper_protocol[] = "--helper-protocol=ntlmssp-client-1";
417 static CHAR credentials_argv[] = "--use-cached-creds";
418 SEC_CHAR *client_argv[5];
419
420 TRACE("First time in ISC()\n");
421
422 if(!phCredential)
423 {
424 ret = SEC_E_INVALID_HANDLE;
425 goto isc_end;
426 }
427
428 /* As the server side of sspi never calls this, make sure that
429 * the handler is a client handler.
430 */
431 ntlm_cred = (PNtlmCredentials)phCredential->dwLower;
432 if(ntlm_cred->mode != NTLM_CLIENT)
433 {
434 TRACE("Cred mode = %d\n", ntlm_cred->mode);
435 ret = SEC_E_INVALID_HANDLE;
436 goto isc_end;
437 }
438
439 client_argv[0] = ntlm_auth;
440 client_argv[1] = helper_protocol;
441 if (!ntlm_cred->username_arg && !ntlm_cred->domain_arg)
442 {
443 LPWKSTA_USER_INFO_1 ui = NULL;
444 NET_API_STATUS status;
445 int unixcp_size;
446 static const char username_arg[] = "--username=";
447
448 status = NetWkstaUserGetInfo(NULL, 1, (LPBYTE *)&ui);
449 if (status != NERR_Success || ui == NULL)
450 {
451 ret = SEC_E_NO_CREDENTIALS;
452 goto isc_end;
453 }
454
455 unixcp_size = WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS,
456 ui->wkui1_username, -1, NULL, 0, NULL, NULL) + sizeof(username_arg);
457 username = HeapAlloc(GetProcessHeap(), 0, unixcp_size);
458 memcpy(username, username_arg, sizeof(username_arg) - 1);
459 WideCharToMultiByte(CP_UNIXCP, WC_NO_BEST_FIT_CHARS, ui->wkui1_username, -1,
460 username + sizeof(username_arg) - 1,
461 unixcp_size - sizeof(username_arg) + 1, NULL, NULL);
462 username[unixcp_size - 1] = '\0';
463
464 TRACE("using cached credentials\n");
465
466 client_argv[2] = username;
467 client_argv[3] = credentials_argv;
468 client_argv[4] = NULL;
469 }
470 else
471 {
472 client_argv[2] = ntlm_cred->username_arg;
473 client_argv[3] = ntlm_cred->domain_arg;
474 client_argv[4] = NULL;
475 }
476
477 if((ret = fork_helper(&helper, ntlm_auth, client_argv)) != SEC_E_OK)
478 goto isc_end;
479
480 helper->mode = NTLM_CLIENT;
481 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
482 if (!helper->session_key)
483 {
484 cleanup_helper(helper);
485 ret = SEC_E_INSUFFICIENT_MEMORY;
486 goto isc_end;
487 }
488
489 /* Generate the dummy session key = MD4(MD4(password))*/
490 if(ntlm_cred->password)
491 {
492 SEC_WCHAR *unicode_password;
493 int passwd_lenW;
494
495 TRACE("Converting password to unicode.\n");
496 passwd_lenW = MultiByteToWideChar(CP_ACP, 0,
497 (LPCSTR)ntlm_cred->password, ntlm_cred->pwlen,
498 NULL, 0);
499 unicode_password = HeapAlloc(GetProcessHeap(), 0,
500 passwd_lenW * sizeof(SEC_WCHAR));
501 MultiByteToWideChar(CP_ACP, 0, (LPCSTR)ntlm_cred->password,
502 ntlm_cred->pwlen, unicode_password, passwd_lenW);
503
504 SECUR32_CreateNTLMv1SessionKey((PBYTE)unicode_password,
505 passwd_lenW * sizeof(SEC_WCHAR), helper->session_key);
506
507 HeapFree(GetProcessHeap(), 0, unicode_password);
508 }
509 else
510 memset(helper->session_key, 0, 16);
511
512 /* Allocate space for a maximal string of
513 * "SF NTLMSSP_FEATURE_SIGN NTLMSSP_FEATURE_SEAL
514 * NTLMSSP_FEATURE_SESSION_KEY"
515 */
516 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
517 if(want_flags == NULL)
518 {
519 cleanup_helper(helper);
520 ret = SEC_E_INSUFFICIENT_MEMORY;
521 goto isc_end;
522 }
523 lstrcpyA(want_flags, "SF");
524 if(fContextReq & ISC_REQ_CONFIDENTIALITY)
525 {
526 char *ptr;
527 if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SEAL")) == NULL)
528 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
529 }
530 if(fContextReq & ISC_REQ_CONNECTION)
531 ctxt_attr |= ISC_RET_CONNECTION;
532 if(fContextReq & ISC_REQ_EXTENDED_ERROR)
533 ctxt_attr |= ISC_RET_EXTENDED_ERROR;
534 if(fContextReq & ISC_REQ_INTEGRITY)
535 {
536 char *ptr;
537 if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
538 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
539 }
540 if(fContextReq & ISC_REQ_MUTUAL_AUTH)
541 ctxt_attr |= ISC_RET_MUTUAL_AUTH;
542 if(fContextReq & ISC_REQ_REPLAY_DETECT)
543 {
544 char *ptr;
545 if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
546 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
547 }
548 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
549 {
550 char *ptr;
551 if((ptr = strstr(want_flags, "NTLMSSP_FEATURE_SIGN")) == NULL)
552 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
553 }
554 if(fContextReq & ISC_REQ_STREAM)
555 FIXME("ISC_REQ_STREAM\n");
556 if(fContextReq & ISC_REQ_USE_DCE_STYLE)
557 ctxt_attr |= ISC_RET_USED_DCE_STYLE;
558 if(fContextReq & ISC_REQ_DELEGATE)
559 ctxt_attr |= ISC_RET_DELEGATE;
560
561 /* If no password is given, try to use cached credentials. Fall back to an empty
562 * password if this failed. */
563 if(ntlm_cred->password == NULL)
564 {
565 lstrcpynA(buffer, "OK", max_len-1);
566 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
567 {
568 cleanup_helper(helper);
569 goto isc_end;
570 }
571 /* If the helper replied with "PW", using cached credentials failed */
572 if(!strncmp(buffer, "PW", 2))
573 {
574 TRACE("Using cached credentials failed.\n");
575 ret = SEC_E_NO_CREDENTIALS;
576 goto isc_end;
577 }
578 else /* Just do a noop on the next run */
579 lstrcpynA(buffer, "OK", max_len-1);
580 }
581 else
582 {
583 lstrcpynA(buffer, "PW ", max_len-1);
584 if((ret = encodeBase64((unsigned char*)ntlm_cred->password,
585 ntlm_cred->pwlen, buffer+3,
586 max_len-3, &buffer_len)) != SEC_E_OK)
587 {
588 cleanup_helper(helper);
589 goto isc_end;
590 }
591
592 }
593
594 TRACE("Sending to helper: %s\n", debugstr_a(buffer));
595 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
596 {
597 cleanup_helper(helper);
598 goto isc_end;
599 }
600
601 TRACE("Helper returned %s\n", debugstr_a(buffer));
602
603 if(lstrlenA(want_flags) > 2)
604 {
605 TRACE("Want flags are %s\n", debugstr_a(want_flags));
606 lstrcpynA(buffer, want_flags, max_len-1);
607 if((ret = run_helper(helper, buffer, max_len, &buffer_len))
608 != SEC_E_OK)
609 goto isc_end;
610 if(!strncmp(buffer, "BH", 2))
611 ERR("Helper doesn't understand new command set. Expect more things to fail.\n");
612 }
613
614 lstrcpynA(buffer, "YR", max_len-1);
615
616 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
617 {
618 cleanup_helper(helper);
619 goto isc_end;
620 }
621
622 TRACE("%s\n", buffer);
623
624 if(strncmp(buffer, "YR ", 3) != 0)
625 {
626 /* Something borked */
627 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
628 ret = SEC_E_INTERNAL_ERROR;
629 cleanup_helper(helper);
630 goto isc_end;
631 }
632 if((ret = decodeBase64(buffer+3, buffer_len-3, bin,
633 max_len-1, &bin_len)) != SEC_E_OK)
634 {
635 cleanup_helper(helper);
636 goto isc_end;
637 }
638
639 /* put the decoded client blob into the out buffer */
640
641 phNewContext->dwUpper = ctxt_attr;
642 phNewContext->dwLower = (ULONG_PTR)helper;
643
644 ret = SEC_I_CONTINUE_NEEDED;
645 }
646 else
647 {
648 int input_token_idx;
649
650 /* handle second call here */
651 /* encode server data to base64 */
652 if (!pInput || ((input_token_idx = ntlm_GetTokenBufferIndex(pInput)) == -1))
653 {
654 ret = SEC_E_INVALID_TOKEN;
655 goto isc_end;
656 }
657
658 if(!phContext)
659 {
660 ret = SEC_E_INVALID_HANDLE;
661 goto isc_end;
662 }
663
664 /* As the server side of sspi never calls this, make sure that
665 * the handler is a client handler.
666 */
667 helper = (PNegoHelper)phContext->dwLower;
668 if(helper->mode != NTLM_CLIENT)
669 {
670 TRACE("Helper mode = %d\n", helper->mode);
671 ret = SEC_E_INVALID_HANDLE;
672 goto isc_end;
673 }
674
675 if (!pInput->pBuffers[input_token_idx].pvBuffer)
676 {
677 ret = SEC_E_INTERNAL_ERROR;
678 goto isc_end;
679 }
680
681 if(pInput->pBuffers[input_token_idx].cbBuffer > max_len)
682 {
683 TRACE("pInput->pBuffers[%d].cbBuffer is: %ld\n",
684 input_token_idx,
685 pInput->pBuffers[input_token_idx].cbBuffer);
686 ret = SEC_E_INVALID_TOKEN;
687 goto isc_end;
688 }
689 else
690 bin_len = pInput->pBuffers[input_token_idx].cbBuffer;
691
692 memcpy(bin, pInput->pBuffers[input_token_idx].pvBuffer, bin_len);
693
694 lstrcpynA(buffer, "TT ", max_len-1);
695
696 if((ret = encodeBase64(bin, bin_len, buffer+3,
697 max_len-3, &buffer_len)) != SEC_E_OK)
698 goto isc_end;
699
700 TRACE("Server sent: %s\n", debugstr_a(buffer));
701
702 /* send TT base64 blob to ntlm_auth */
703 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
704 goto isc_end;
705
706 TRACE("Helper replied: %s\n", debugstr_a(buffer));
707
708 if( (strncmp(buffer, "KK ", 3) != 0) &&
709 (strncmp(buffer, "AF ", 3) !=0))
710 {
711 TRACE("Helper returned %c%c\n", buffer[0], buffer[1]);
712 ret = SEC_E_INVALID_TOKEN;
713 goto isc_end;
714 }
715
716 /* decode the blob and send it to server */
717 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
718 &bin_len)) != SEC_E_OK)
719 {
720 goto isc_end;
721 }
722
723 phNewContext->dwUpper = ctxt_attr;
724 phNewContext->dwLower = (ULONG_PTR)helper;
725
726 ret = SEC_E_OK;
727 }
728
729 /* put the decoded client blob into the out buffer */
730
731 if (!pOutput || ((token_idx = ntlm_GetTokenBufferIndex(pOutput)) == -1))
732 {
733 TRACE("no SECBUFFER_TOKEN buffer could be found\n");
734 ret = SEC_E_BUFFER_TOO_SMALL;
735 if ((phContext == NULL) && (pInput == NULL))
736 {
737 cleanup_helper(helper);
738 phNewContext->dwUpper = 0;
739 phNewContext->dwLower = 0;
740 }
741 goto isc_end;
742 }
743
744 if (fContextReq & ISC_REQ_ALLOCATE_MEMORY)
745 {
746 pOutput->pBuffers[token_idx].pvBuffer = HeapAlloc(GetProcessHeap(), 0, bin_len);
747 pOutput->pBuffers[token_idx].cbBuffer = bin_len;
748 }
749 else if (pOutput->pBuffers[token_idx].cbBuffer < bin_len)
750 {
751 TRACE("out buffer is NULL or has not enough space\n");
752 ret = SEC_E_BUFFER_TOO_SMALL;
753 if ((phContext == NULL) && (pInput == NULL))
754 {
755 cleanup_helper(helper);
756 phNewContext->dwUpper = 0;
757 phNewContext->dwLower = 0;
758 }
759 goto isc_end;
760 }
761
762 if (!pOutput->pBuffers[token_idx].pvBuffer)
763 {
764 TRACE("out buffer is NULL\n");
765 ret = SEC_E_INTERNAL_ERROR;
766 if ((phContext == NULL) && (pInput == NULL))
767 {
768 cleanup_helper(helper);
769 phNewContext->dwUpper = 0;
770 phNewContext->dwLower = 0;
771 }
772 goto isc_end;
773 }
774
775 pOutput->pBuffers[token_idx].cbBuffer = bin_len;
776 memcpy(pOutput->pBuffers[token_idx].pvBuffer, bin, bin_len);
777
778 if(ret == SEC_E_OK)
779 {
780 TRACE("Getting negotiated flags\n");
781 lstrcpynA(buffer, "GF", max_len - 1);
782 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
783 goto isc_end;
784
785 if(buffer_len < 3)
786 {
787 TRACE("No flags negotiated.\n");
788 helper->neg_flags = 0l;
789 }
790 else
791 {
792 TRACE("Negotiated %s\n", debugstr_a(buffer));
793 sscanf(buffer + 3, "%lx", &(helper->neg_flags));
794 TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
795 }
796
797 TRACE("Getting session key\n");
798 lstrcpynA(buffer, "GK", max_len - 1);
799 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
800 goto isc_end;
801
802 if(strncmp(buffer, "BH", 2) == 0)
803 TRACE("No key negotiated.\n");
804 else if(strncmp(buffer, "GK ", 3) == 0)
805 {
806 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
807 &bin_len)) != SEC_E_OK)
808 {
809 TRACE("Failed to decode session key\n");
810 }
811 TRACE("Session key is %s\n", debugstr_a(buffer+3));
812 HeapFree(GetProcessHeap(), 0, helper->session_key);
813 helper->session_key = HeapAlloc(GetProcessHeap(), 0, bin_len);
814 if(!helper->session_key)
815 {
816 TRACE("Failed to allocate memory for session key\n");
817 ret = SEC_E_INTERNAL_ERROR;
818 goto isc_end;
819 }
820 memcpy(helper->session_key, bin, bin_len);
821 }
822
823 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
824 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
825 helper->crypt.ntlm.seq_num = 0l;
826 SECUR32_CreateNTLMv2SubKeys(helper);
827 helper->crypt.ntlm2.send_a4i = SECUR32_arc4Alloc();
828 helper->crypt.ntlm2.recv_a4i = SECUR32_arc4Alloc();
829 SECUR32_arc4Init(helper->crypt.ntlm2.send_a4i,
830 helper->crypt.ntlm2.send_seal_key, 16);
831 SECUR32_arc4Init(helper->crypt.ntlm2.recv_a4i,
832 helper->crypt.ntlm2.recv_seal_key, 16);
833 helper->crypt.ntlm2.send_seq_no = 0l;
834 helper->crypt.ntlm2.recv_seq_no = 0l;
835 }
836
837 isc_end:
838 HeapFree(GetProcessHeap(), 0, username);
839 HeapFree(GetProcessHeap(), 0, want_flags);
840 HeapFree(GetProcessHeap(), 0, buffer);
841 HeapFree(GetProcessHeap(), 0, bin);
842 return ret;
843 }
844
845 /***********************************************************************
846 * InitializeSecurityContextA
847 */
848 static SECURITY_STATUS SEC_ENTRY ntlm_InitializeSecurityContextA(
849 PCredHandle phCredential, PCtxtHandle phContext, SEC_CHAR *pszTargetName,
850 ULONG fContextReq, ULONG Reserved1, ULONG TargetDataRep,
851 PSecBufferDesc pInput,ULONG Reserved2, PCtxtHandle phNewContext,
852 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
853 {
854 SECURITY_STATUS ret;
855 SEC_WCHAR *target = NULL;
856
857 TRACE("%p %p %s %d %d %d %p %d %p %p %p %p\n", phCredential, phContext,
858 debugstr_a(pszTargetName), fContextReq, Reserved1, TargetDataRep, pInput,
859 Reserved1, phNewContext, pOutput, pfContextAttr, ptsExpiry);
860
861 if(pszTargetName != NULL)
862 {
863 int target_size = MultiByteToWideChar(CP_ACP, 0, pszTargetName,
864 strlen(pszTargetName)+1, NULL, 0);
865 target = HeapAlloc(GetProcessHeap(), 0, target_size *
866 sizeof(SEC_WCHAR));
867 MultiByteToWideChar(CP_ACP, 0, pszTargetName, strlen(pszTargetName)+1,
868 target, target_size);
869 }
870
871 ret = ntlm_InitializeSecurityContextW(phCredential, phContext, target,
872 fContextReq, Reserved1, TargetDataRep, pInput, Reserved2,
873 phNewContext, pOutput, pfContextAttr, ptsExpiry);
874
875 HeapFree(GetProcessHeap(), 0, target);
876 return ret;
877 }
878
879 /***********************************************************************
880 * AcceptSecurityContext
881 */
882 static SECURITY_STATUS SEC_ENTRY ntlm_AcceptSecurityContext(
883 PCredHandle phCredential, PCtxtHandle phContext, PSecBufferDesc pInput,
884 ULONG fContextReq, ULONG TargetDataRep, PCtxtHandle phNewContext,
885 PSecBufferDesc pOutput, ULONG *pfContextAttr, PTimeStamp ptsExpiry)
886 {
887 SECURITY_STATUS ret;
888 char *buffer, *want_flags = NULL;
889 PBYTE bin;
890 int buffer_len, bin_len, max_len = NTLM_MAX_BUF;
891 ULONG ctxt_attr = 0;
892 PNegoHelper helper;
893 PNtlmCredentials ntlm_cred;
894
895 TRACE("%p %p %p %d %d %p %p %p %p\n", phCredential, phContext, pInput,
896 fContextReq, TargetDataRep, phNewContext, pOutput, pfContextAttr,
897 ptsExpiry);
898
899 buffer = HeapAlloc(GetProcessHeap(), 0, sizeof(char) * NTLM_MAX_BUF);
900 bin = HeapAlloc(GetProcessHeap(),0, sizeof(BYTE) * NTLM_MAX_BUF);
901
902 if(TargetDataRep == SECURITY_NETWORK_DREP){
903 TRACE("Using SECURITY_NETWORK_DREP\n");
904 }
905
906 if(phContext == NULL)
907 {
908 static CHAR server_helper_protocol[] = "--helper-protocol=squid-2.5-ntlmssp";
909 SEC_CHAR *server_argv[] = { ntlm_auth,
910 server_helper_protocol,
911 NULL };
912
913 if (!phCredential)
914 {
915 ret = SEC_E_INVALID_HANDLE;
916 goto asc_end;
917 }
918
919 ntlm_cred = (PNtlmCredentials)phCredential->dwLower;
920
921 if(ntlm_cred->mode != NTLM_SERVER)
922 {
923 ret = SEC_E_INVALID_HANDLE;
924 goto asc_end;
925 }
926
927 /* This is the first call to AcceptSecurityHandle */
928 if(pInput == NULL)
929 {
930 ret = SEC_E_INCOMPLETE_MESSAGE;
931 goto asc_end;
932 }
933
934 if(pInput->cBuffers < 1)
935 {
936 ret = SEC_E_INCOMPLETE_MESSAGE;
937 goto asc_end;
938 }
939
940 if(pInput->pBuffers[0].cbBuffer > max_len)
941 {
942 ret = SEC_E_INVALID_TOKEN;
943 goto asc_end;
944 }
945 else
946 bin_len = pInput->pBuffers[0].cbBuffer;
947
948 if( (ret = fork_helper(&helper, ntlm_auth, server_argv)) !=
949 SEC_E_OK)
950 {
951 ret = SEC_E_INTERNAL_ERROR;
952 goto asc_end;
953 }
954 helper->mode = NTLM_SERVER;
955
956 /* Handle all the flags */
957 want_flags = HeapAlloc(GetProcessHeap(), 0, 73);
958 if(want_flags == NULL)
959 {
960 TRACE("Failed to allocate memory for the want_flags!\n");
961 ret = SEC_E_INSUFFICIENT_MEMORY;
962 cleanup_helper(helper);
963 goto asc_end;
964 }
965 lstrcpyA(want_flags, "SF");
966 if(fContextReq & ASC_REQ_ALLOCATE_MEMORY)
967 {
968 FIXME("ASC_REQ_ALLOCATE_MEMORY stub\n");
969 }
970 if(fContextReq & ASC_REQ_CONFIDENTIALITY)
971 {
972 lstrcatA(want_flags, " NTLMSSP_FEATURE_SEAL");
973 }
974 if(fContextReq & ASC_REQ_CONNECTION)
975 {
976 /* This is default, so we'll enable it */
977 lstrcatA(want_flags, " NTLMSSP_FEATURE_SESSION_KEY");
978 ctxt_attr |= ASC_RET_CONNECTION;
979 }
980 if(fContextReq & ASC_REQ_EXTENDED_ERROR)
981 {
982 FIXME("ASC_REQ_EXTENDED_ERROR stub\n");
983 }
984 if(fContextReq & ASC_REQ_INTEGRITY)
985 {
986 lstrcatA(want_flags, " NTLMSSP_FEATURE_SIGN");
987 }
988 if(fContextReq & ASC_REQ_MUTUAL_AUTH)
989 {
990 FIXME("ASC_REQ_MUTUAL_AUTH stub\n");
991 }
992 if(fContextReq & ASC_REQ_REPLAY_DETECT)
993 {
994 FIXME("ASC_REQ_REPLAY_DETECT stub\n");
995 }
996 if(fContextReq & ISC_REQ_SEQUENCE_DETECT)
997 {
998 FIXME("ASC_REQ_SEQUENCE_DETECT stub\n");
999 }
1000 if(fContextReq & ISC_REQ_STREAM)
1001 {
1002 FIXME("ASC_REQ_STREAM stub\n");
1003 }
1004 /* Done with the flags */
1005
1006 if(lstrlenA(want_flags) > 3)
1007 {
1008 TRACE("Server set want_flags: %s\n", debugstr_a(want_flags));
1009 lstrcpynA(buffer, want_flags, max_len - 1);
1010 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1011 SEC_E_OK)
1012 {
1013 cleanup_helper(helper);
1014 goto asc_end;
1015 }
1016 if(!strncmp(buffer, "BH", 2))
1017 TRACE("Helper doesn't understand new command set\n");
1018 }
1019
1020 /* This is the YR request from the client, encode to base64 */
1021
1022 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
1023
1024 lstrcpynA(buffer, "YR ", max_len-1);
1025
1026 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
1027 &buffer_len)) != SEC_E_OK)
1028 {
1029 cleanup_helper(helper);
1030 goto asc_end;
1031 }
1032
1033 TRACE("Client sent: %s\n", debugstr_a(buffer));
1034
1035 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1036 SEC_E_OK)
1037 {
1038 cleanup_helper(helper);
1039 goto asc_end;
1040 }
1041
1042 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1043 /* The expected answer is TT <base64 blob> */
1044
1045 if(strncmp(buffer, "TT ", 3) != 0)
1046 {
1047 ret = SEC_E_INTERNAL_ERROR;
1048 cleanup_helper(helper);
1049 goto asc_end;
1050 }
1051
1052 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1053 &bin_len)) != SEC_E_OK)
1054 {
1055 cleanup_helper(helper);
1056 goto asc_end;
1057 }
1058
1059 /* send this to the client */
1060 if(pOutput == NULL)
1061 {
1062 ret = SEC_E_INSUFFICIENT_MEMORY;
1063 cleanup_helper(helper);
1064 goto asc_end;
1065 }
1066
1067 if(pOutput->cBuffers < 1)
1068 {
1069 ret = SEC_E_INSUFFICIENT_MEMORY;
1070 cleanup_helper(helper);
1071 goto asc_end;
1072 }
1073
1074 pOutput->pBuffers[0].cbBuffer = bin_len;
1075 pOutput->pBuffers[0].BufferType = SECBUFFER_DATA;
1076 memcpy(pOutput->pBuffers[0].pvBuffer, bin, bin_len);
1077 ret = SEC_I_CONTINUE_NEEDED;
1078
1079 }
1080 else
1081 {
1082 /* we expect a KK request from client */
1083 if(pInput == NULL)
1084 {
1085 ret = SEC_E_INCOMPLETE_MESSAGE;
1086 goto asc_end;
1087 }
1088
1089 if(pInput->cBuffers < 1)
1090 {
1091 ret = SEC_E_INCOMPLETE_MESSAGE;
1092 goto asc_end;
1093 }
1094
1095 if(!phContext)
1096 {
1097 ret = SEC_E_INVALID_HANDLE;
1098 goto asc_end;
1099 }
1100
1101 helper = (PNegoHelper)phContext->dwLower;
1102
1103 if(helper->mode != NTLM_SERVER)
1104 {
1105 ret = SEC_E_INVALID_HANDLE;
1106 goto asc_end;
1107 }
1108
1109 if(pInput->pBuffers[0].cbBuffer > max_len)
1110 {
1111 ret = SEC_E_INVALID_TOKEN;
1112 goto asc_end;
1113 }
1114 else
1115 bin_len = pInput->pBuffers[0].cbBuffer;
1116
1117 memcpy(bin, pInput->pBuffers[0].pvBuffer, bin_len);
1118
1119 lstrcpynA(buffer, "KK ", max_len-1);
1120
1121 if((ret = encodeBase64(bin, bin_len, buffer+3, max_len-3,
1122 &buffer_len)) != SEC_E_OK)
1123 {
1124 goto asc_end;
1125 }
1126
1127 TRACE("Client sent: %s\n", debugstr_a(buffer));
1128
1129 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) !=
1130 SEC_E_OK)
1131 {
1132 goto asc_end;
1133 }
1134
1135 TRACE("Reply from ntlm_auth: %s\n", debugstr_a(buffer));
1136
1137 /* At this point, we get a NA if the user didn't authenticate, but a BH
1138 * if ntlm_auth could not connect to winbindd. Apart from running Wine
1139 * as root, there is no way to fix this for now, so just handle this as
1140 * a failed login. */
1141 if(strncmp(buffer, "AF ", 3) != 0)
1142 {
1143 if(strncmp(buffer, "NA ", 3) == 0)
1144 {
1145 ret = SEC_E_LOGON_DENIED;
1146 goto asc_end;
1147 }
1148 else
1149 {
1150 size_t ntlm_pipe_err_len = strlen("BH NT_STATUS_ACCESS_DENIED");
1151
1152 if( (buffer_len >= ntlm_pipe_err_len) &&
1153 (strncmp(buffer, "BH NT_STATUS_ACCESS_DENIED",
1154 ntlm_pipe_err_len) == 0))
1155 {
1156 TRACE("Connection to winbindd failed\n");
1157 ret = SEC_E_LOGON_DENIED;
1158 }
1159 else
1160 ret = SEC_E_INTERNAL_ERROR;
1161
1162 goto asc_end;
1163 }
1164 }
1165 pOutput->pBuffers[0].cbBuffer = 0;
1166 ret = SEC_E_OK;
1167
1168 TRACE("Getting negotiated flags\n");
1169 lstrcpynA(buffer, "GF", max_len - 1);
1170 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1171 goto asc_end;
1172
1173 if(buffer_len < 3)
1174 {
1175 TRACE("No flags negotiated, or helper does not support GF command\n");
1176 }
1177 else
1178 {
1179 TRACE("Negotiated %s\n", debugstr_a(buffer));
1180 sscanf(buffer + 3, "%lx", &(helper->neg_flags));
1181 TRACE("Stored 0x%08lx as flags\n", helper->neg_flags);
1182 }
1183
1184 TRACE("Getting session key\n");
1185 lstrcpynA(buffer, "GK", max_len - 1);
1186 if((ret = run_helper(helper, buffer, max_len, &buffer_len)) != SEC_E_OK)
1187 goto asc_end;
1188
1189 if(buffer_len < 3)
1190 TRACE("Helper does not support GK command\n");
1191 else
1192 {
1193 if(strncmp(buffer, "BH ", 3) == 0)
1194 {
1195 TRACE("Helper sent %s\n", debugstr_a(buffer+3));
1196 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1197 /*FIXME: Generate the dummy session key = MD4(MD4(password))*/
1198 memset(helper->session_key, 0 , 16);
1199 }
1200 else if(strncmp(buffer, "GK ", 3) == 0)
1201 {
1202 if((ret = decodeBase64(buffer+3, buffer_len-3, bin, max_len,
1203 &bin_len)) != SEC_E_OK)
1204 {
1205 TRACE("Failed to decode session key\n");
1206 }
1207 TRACE("Session key is %s\n", debugstr_a(buffer+3));
1208 helper->session_key = HeapAlloc(GetProcessHeap(), 0, 16);
1209 if(!helper->session_key)
1210 {
1211 TRACE("Failed to allocate memory for session key\n");
1212 ret = SEC_E_INTERNAL_ERROR;
1213 goto asc_end;
1214 }
1215 memcpy(helper->session_key, bin, 16);
1216 }
1217 }
1218 helper->crypt.ntlm.a4i = SECUR32_arc4Alloc();
1219 SECUR32_arc4Init(helper->crypt.ntlm.a4i, helper->session_key, 16);
1220 helper->crypt.ntlm.seq_num = 0l;
1221 }
1222
1223 phNewContext->dwUpper = ctxt_attr;
1224 phNewContext->dwLower = (ULONG_PTR)helper;
1225
1226 asc_end:
1227 HeapFree(GetProcessHeap(), 0, want_flags);
1228 HeapFree(GetProcessHeap(), 0, buffer);
1229 HeapFree(GetProcessHeap(), 0, bin);
1230 return ret;
1231 }
1232
1233 /***********************************************************************
1234 * CompleteAuthToken
1235 */
1236 static SECURITY_STATUS SEC_ENTRY ntlm_CompleteAuthToken(PCtxtHandle phContext,
1237 PSecBufferDesc pToken)
1238 {
1239 /* We never need to call CompleteAuthToken anyway */
1240 TRACE("%p %p\n", phContext, pToken);
1241 if (!phContext)
1242 return SEC_E_INVALID_HANDLE;
1243
1244 return SEC_E_OK;
1245 }
1246
1247 /***********************************************************************
1248 * DeleteSecurityContext
1249 */
1250 static SECURITY_STATUS SEC_ENTRY ntlm_DeleteSecurityContext(PCtxtHandle phContext)
1251 {
1252 PNegoHelper helper;
1253
1254 TRACE("%p\n", phContext);
1255 if (!phContext)
1256 return SEC_E_INVALID_HANDLE;
1257
1258 helper = (PNegoHelper)phContext->dwLower;
1259
1260 phContext->dwUpper = 0;
1261 phContext->dwLower = 0;
1262
1263 SECUR32_arc4Cleanup(helper->crypt.ntlm.a4i);
1264 HeapFree(GetProcessHeap(), 0, helper->session_key);
1265 SECUR32_arc4Cleanup(helper->crypt.ntlm2.send_a4i);
1266 SECUR32_arc4Cleanup(helper->crypt.ntlm2.recv_a4i);
1267 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_sign_key);
1268 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.send_seal_key);
1269 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_sign_key);
1270 HeapFree(GetProcessHeap(), 0, helper->crypt.ntlm2.recv_seal_key);
1271
1272 cleanup_helper(helper);
1273
1274 return SEC_E_OK;
1275 }
1276
1277 /***********************************************************************
1278 * QueryContextAttributesW
1279 */
1280 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesW(PCtxtHandle phContext,
1281 ULONG ulAttribute, void *pBuffer)
1282 {
1283 TRACE("%p %d %p\n", phContext, ulAttribute, pBuffer);
1284 if (!phContext)
1285 return SEC_E_INVALID_HANDLE;
1286
1287 switch(ulAttribute)
1288 {
1289 #define _x(x) case (x) : FIXME(#x" stub\n"); break
1290 _x(SECPKG_ATTR_ACCESS_TOKEN);
1291 _x(SECPKG_ATTR_AUTHORITY);
1292 _x(SECPKG_ATTR_DCE_INFO);
1293 case SECPKG_ATTR_FLAGS:
1294 {
1295 PSecPkgContext_Flags spcf = (PSecPkgContext_Flags)pBuffer;
1296 PNegoHelper helper = (PNegoHelper)phContext->dwLower;
1297
1298 spcf->Flags = 0;
1299 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1300 spcf->Flags |= ISC_RET_INTEGRITY;
1301 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1302 spcf->Flags |= ISC_RET_CONFIDENTIALITY;
1303 return SEC_E_OK;
1304 }
1305 _x(SECPKG_ATTR_KEY_INFO);
1306 _x(SECPKG_ATTR_LIFESPAN);
1307 _x(SECPKG_ATTR_NAMES);
1308 _x(SECPKG_ATTR_NATIVE_NAMES);
1309 _x(SECPKG_ATTR_NEGOTIATION_INFO);
1310 _x(SECPKG_ATTR_PACKAGE_INFO);
1311 _x(SECPKG_ATTR_PASSWORD_EXPIRY);
1312 _x(SECPKG_ATTR_SESSION_KEY);
1313 case SECPKG_ATTR_SIZES:
1314 {
1315 PSecPkgContext_Sizes spcs = (PSecPkgContext_Sizes)pBuffer;
1316 spcs->cbMaxToken = NTLM_MAX_BUF;
1317 spcs->cbMaxSignature = 16;
1318 spcs->cbBlockSize = 0;
1319 spcs->cbSecurityTrailer = 16;
1320 return SEC_E_OK;
1321 }
1322 _x(SECPKG_ATTR_STREAM_SIZES);
1323 _x(SECPKG_ATTR_TARGET_INFORMATION);
1324 #undef _x
1325 default:
1326 TRACE("Unknown value %d passed for ulAttribute\n", ulAttribute);
1327 }
1328
1329 return SEC_E_UNSUPPORTED_FUNCTION;
1330 }
1331
1332 /***********************************************************************
1333 * QueryContextAttributesA
1334 */
1335 static SECURITY_STATUS SEC_ENTRY ntlm_QueryContextAttributesA(PCtxtHandle phContext,
1336 ULONG ulAttribute, void *pBuffer)
1337 {
1338 return ntlm_QueryContextAttributesW(phContext, ulAttribute, pBuffer);
1339 }
1340
1341 /***********************************************************************
1342 * ImpersonateSecurityContext
1343 */
1344 static SECURITY_STATUS SEC_ENTRY ntlm_ImpersonateSecurityContext(PCtxtHandle phContext)
1345 {
1346 SECURITY_STATUS ret;
1347
1348 TRACE("%p\n", phContext);
1349 if (phContext)
1350 {
1351 ret = SEC_E_UNSUPPORTED_FUNCTION;
1352 }
1353 else
1354 {
1355 ret = SEC_E_INVALID_HANDLE;
1356 }
1357 return ret;
1358 }
1359
1360 /***********************************************************************
1361 * RevertSecurityContext
1362 */
1363 static SECURITY_STATUS SEC_ENTRY ntlm_RevertSecurityContext(PCtxtHandle phContext)
1364 {
1365 SECURITY_STATUS ret;
1366
1367 TRACE("%p\n", phContext);
1368 if (phContext)
1369 {
1370 ret = SEC_E_UNSUPPORTED_FUNCTION;
1371 }
1372 else
1373 {
1374 ret = SEC_E_INVALID_HANDLE;
1375 }
1376 return ret;
1377 }
1378
1379 /***********************************************************************
1380 * ntlm_CreateSignature
1381 * As both MakeSignature and VerifySignature need this, but different keys
1382 * are needed for NTLMv2, the logic goes into a helper function.
1383 * To ensure maximal reusability, we can specify the direction as NTLM_SEND for
1384 * signing/encrypting and NTLM_RECV for verfying/decrypting. When encrypting,
1385 * the signature is encrypted after the message was encrypted, so
1386 * CreateSignature shouldn't do it. In this case, encrypt_sig can be set to
1387 * false.
1388 */
1389 static SECURITY_STATUS ntlm_CreateSignature(PNegoHelper helper, PSecBufferDesc pMessage,
1390 int token_idx, SignDirection direction, BOOL encrypt_sig)
1391 {
1392 ULONG sign_version = 1;
1393 UINT i;
1394 PBYTE sig;
1395 TRACE("%p, %p, %d, %d, %d\n", helper, pMessage, token_idx, direction,
1396 encrypt_sig);
1397
1398 sig = pMessage->pBuffers[token_idx].pvBuffer;
1399
1400 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1401 helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1402 {
1403 BYTE digest[16];
1404 BYTE seq_no[4];
1405 HMAC_MD5_CTX hmac_md5_ctx;
1406
1407 TRACE("Signing NTLM2 style\n");
1408
1409 if(direction == NTLM_SEND)
1410 {
1411 seq_no[0] = (helper->crypt.ntlm2.send_seq_no >> 0) & 0xff;
1412 seq_no[1] = (helper->crypt.ntlm2.send_seq_no >> 8) & 0xff;
1413 seq_no[2] = (helper->crypt.ntlm2.send_seq_no >> 16) & 0xff;
1414 seq_no[3] = (helper->crypt.ntlm2.send_seq_no >> 24) & 0xff;
1415
1416 ++(helper->crypt.ntlm2.send_seq_no);
1417
1418 HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.send_sign_key, 16);
1419 }
1420 else
1421 {
1422 seq_no[0] = (helper->crypt.ntlm2.recv_seq_no >> 0) & 0xff;
1423 seq_no[1] = (helper->crypt.ntlm2.recv_seq_no >> 8) & 0xff;
1424 seq_no[2] = (helper->crypt.ntlm2.recv_seq_no >> 16) & 0xff;
1425 seq_no[3] = (helper->crypt.ntlm2.recv_seq_no >> 24) & 0xff;
1426
1427 ++(helper->crypt.ntlm2.recv_seq_no);
1428
1429 HMACMD5Init(&hmac_md5_ctx, helper->crypt.ntlm2.recv_sign_key, 16);
1430 }
1431
1432 HMACMD5Update(&hmac_md5_ctx, seq_no, 4);
1433 for( i = 0; i < pMessage->cBuffers; ++i )
1434 {
1435 if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1436 HMACMD5Update(&hmac_md5_ctx, (BYTE *)pMessage->pBuffers[i].pvBuffer,
1437 pMessage->pBuffers[i].cbBuffer);
1438 }
1439
1440 HMACMD5Final(&hmac_md5_ctx, digest);
1441
1442 if(encrypt_sig && helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1443 {
1444 if(direction == NTLM_SEND)
1445 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i, digest, 8);
1446 else
1447 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i, digest, 8);
1448 }
1449
1450 /* The NTLM2 signature is the sign version */
1451 sig[ 0] = (sign_version >> 0) & 0xff;
1452 sig[ 1] = (sign_version >> 8) & 0xff;
1453 sig[ 2] = (sign_version >> 16) & 0xff;
1454 sig[ 3] = (sign_version >> 24) & 0xff;
1455 /* The first 8 bytes of the digest */
1456 memcpy(sig+4, digest, 8);
1457 /* And the sequence number */
1458 memcpy(sig+12, seq_no, 4);
1459
1460 pMessage->pBuffers[token_idx].cbBuffer = 16;
1461
1462 return SEC_E_OK;
1463 }
1464 if(helper->neg_flags & NTLMSSP_NEGOTIATE_SIGN)
1465 {
1466 ULONG crc = 0U;
1467 TRACE("Signing NTLM1 style\n");
1468
1469 for(i=0; i < pMessage->cBuffers; ++i)
1470 {
1471 if(pMessage->pBuffers[i].BufferType & SECBUFFER_DATA)
1472 {
1473 crc = ComputeCrc32(pMessage->pBuffers[i].pvBuffer,
1474 pMessage->pBuffers[i].cbBuffer, crc);
1475 }
1476 }
1477
1478 sig[ 0] = (sign_version >> 0) & 0xff;
1479 sig[ 1] = (sign_version >> 8) & 0xff;
1480 sig[ 2] = (sign_version >> 16) & 0xff;
1481 sig[ 3] = (sign_version >> 24) & 0xff;
1482 memset(sig+4, 0, 4);
1483 sig[ 8] = (crc >> 0) & 0xff;
1484 sig[ 9] = (crc >> 8) & 0xff;
1485 sig[10] = (crc >> 16) & 0xff;
1486 sig[11] = (crc >> 24) & 0xff;
1487 sig[12] = (helper->crypt.ntlm.seq_num >> 0) & 0xff;
1488 sig[13] = (helper->crypt.ntlm.seq_num >> 8) & 0xff;
1489 sig[14] = (helper->crypt.ntlm.seq_num >> 16) & 0xff;
1490 sig[15] = (helper->crypt.ntlm.seq_num >> 24) & 0xff;
1491
1492 ++(helper->crypt.ntlm.seq_num);
1493
1494 if(encrypt_sig)
1495 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1496 return SEC_E_OK;
1497 }
1498
1499 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1500 {
1501 TRACE("Creating a dummy signature.\n");
1502 /* A dummy signature is 0x01 followed by 15 bytes of 0x00 */
1503 memset(pMessage->pBuffers[token_idx].pvBuffer, 0, 16);
1504 memset(pMessage->pBuffers[token_idx].pvBuffer, 0x01, 1);
1505 pMessage->pBuffers[token_idx].cbBuffer = 16;
1506 return SEC_E_OK;
1507 }
1508
1509 return SEC_E_UNSUPPORTED_FUNCTION;
1510 }
1511
1512 /***********************************************************************
1513 * MakeSignature
1514 */
1515 static SECURITY_STATUS SEC_ENTRY ntlm_MakeSignature(PCtxtHandle phContext, ULONG fQOP,
1516 PSecBufferDesc pMessage, ULONG MessageSeqNo)
1517 {
1518 PNegoHelper helper;
1519 int token_idx;
1520
1521 TRACE("%p %d %p %d\n", phContext, fQOP, pMessage, MessageSeqNo);
1522 if (!phContext)
1523 return SEC_E_INVALID_HANDLE;
1524
1525 if(fQOP)
1526 FIXME("Ignoring fQOP 0x%08x\n", fQOP);
1527
1528 if(MessageSeqNo)
1529 FIXME("Ignoring MessageSeqNo\n");
1530
1531 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1532 return SEC_E_INVALID_TOKEN;
1533
1534 /* If we didn't find a SECBUFFER_TOKEN type buffer */
1535 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1536 return SEC_E_INVALID_TOKEN;
1537
1538 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1539 return SEC_E_BUFFER_TOO_SMALL;
1540
1541 helper = (PNegoHelper)phContext->dwLower;
1542 TRACE("Negotiated flags are: 0x%08lx\n", helper->neg_flags);
1543
1544 return ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, TRUE);
1545 }
1546
1547 /***********************************************************************
1548 * VerifySignature
1549 */
1550 static SECURITY_STATUS SEC_ENTRY ntlm_VerifySignature(PCtxtHandle phContext,
1551 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1552 {
1553 PNegoHelper helper;
1554 ULONG fQOP = 0;
1555 UINT i;
1556 int token_idx;
1557 SECURITY_STATUS ret;
1558 SecBufferDesc local_desc;
1559 PSecBuffer local_buff;
1560 BYTE local_sig[16];
1561
1562 TRACE("%p %p %d %p\n", phContext, pMessage, MessageSeqNo, pfQOP);
1563 if(!phContext)
1564 return SEC_E_INVALID_HANDLE;
1565
1566 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1567 return SEC_E_INVALID_TOKEN;
1568
1569 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1570 return SEC_E_INVALID_TOKEN;
1571
1572 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1573 return SEC_E_BUFFER_TOO_SMALL;
1574
1575 if(MessageSeqNo)
1576 FIXME("Ignoring MessageSeqNo\n");
1577
1578 helper = (PNegoHelper)phContext->dwLower;
1579 TRACE("Negotiated flags: 0x%08lx\n", helper->neg_flags);
1580
1581 local_buff = HeapAlloc(GetProcessHeap(), 0, pMessage->cBuffers * sizeof(SecBuffer));
1582
1583 local_desc.ulVersion = SECBUFFER_VERSION;
1584 local_desc.cBuffers = pMessage->cBuffers;
1585 local_desc.pBuffers = local_buff;
1586
1587 for(i=0; i < pMessage->cBuffers; ++i)
1588 {
1589 if(pMessage->pBuffers[i].BufferType == SECBUFFER_TOKEN)
1590 {
1591 local_buff[i].BufferType = SECBUFFER_TOKEN;
1592 local_buff[i].cbBuffer = 16;
1593 local_buff[i].pvBuffer = local_sig;
1594 }
1595 else
1596 {
1597 local_buff[i].BufferType = pMessage->pBuffers[i].BufferType;
1598 local_buff[i].cbBuffer = pMessage->pBuffers[i].cbBuffer;
1599 local_buff[i].pvBuffer = pMessage->pBuffers[i].pvBuffer;
1600 }
1601 }
1602
1603 if((ret = ntlm_CreateSignature(helper, &local_desc, token_idx, NTLM_RECV, TRUE)) != SEC_E_OK)
1604 return ret;
1605
1606 if(memcmp(((PBYTE)local_buff[token_idx].pvBuffer) + 8,
1607 ((PBYTE)pMessage->pBuffers[token_idx].pvBuffer) + 8, 8))
1608 ret = SEC_E_MESSAGE_ALTERED;
1609 else
1610 ret = SEC_E_OK;
1611
1612 HeapFree(GetProcessHeap(), 0, local_buff);
1613 pfQOP = &fQOP;
1614
1615 return ret;
1616
1617 }
1618
1619 /***********************************************************************
1620 * FreeCredentialsHandle
1621 */
1622 static SECURITY_STATUS SEC_ENTRY ntlm_FreeCredentialsHandle(
1623 PCredHandle phCredential)
1624 {
1625 SECURITY_STATUS ret;
1626
1627 if(phCredential){
1628 PNtlmCredentials ntlm_cred = (PNtlmCredentials) phCredential->dwLower;
1629 phCredential->dwUpper = 0;
1630 phCredential->dwLower = 0;
1631 if (ntlm_cred->password)
1632 memset(ntlm_cred->password, 0, ntlm_cred->pwlen);
1633 HeapFree(GetProcessHeap(), 0, ntlm_cred->password);
1634 HeapFree(GetProcessHeap(), 0, ntlm_cred->username_arg);
1635 HeapFree(GetProcessHeap(), 0, ntlm_cred->domain_arg);
1636 ret = SEC_E_OK;
1637 }
1638 else
1639 ret = SEC_E_OK;
1640
1641 return ret;
1642 }
1643
1644 /***********************************************************************
1645 * EncryptMessage
1646 */
1647 static SECURITY_STATUS SEC_ENTRY ntlm_EncryptMessage(PCtxtHandle phContext,
1648 ULONG fQOP, PSecBufferDesc pMessage, ULONG MessageSeqNo)
1649 {
1650 PNegoHelper helper;
1651 int token_idx, data_idx;
1652
1653 TRACE("(%p %d %p %d)\n", phContext, fQOP, pMessage, MessageSeqNo);
1654
1655 if(!phContext)
1656 return SEC_E_INVALID_HANDLE;
1657
1658 if(fQOP)
1659 FIXME("Ignoring fQOP\n");
1660
1661 if(MessageSeqNo)
1662 FIXME("Ignoring MessageSeqNo\n");
1663
1664 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1665 return SEC_E_INVALID_TOKEN;
1666
1667 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1668 return SEC_E_INVALID_TOKEN;
1669
1670 if((data_idx = ntlm_GetDataBufferIndex(pMessage)) ==-1 )
1671 return SEC_E_INVALID_TOKEN;
1672
1673 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1674 return SEC_E_BUFFER_TOO_SMALL;
1675
1676 helper = (PNegoHelper) phContext->dwLower;
1677
1678 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 &&
1679 helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1680 {
1681 ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1682 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1683 (BYTE *)pMessage->pBuffers[data_idx].pvBuffer,
1684 pMessage->pBuffers[data_idx].cbBuffer);
1685
1686 if(helper->neg_flags & NTLMSSP_NEGOTIATE_KEY_EXCHANGE)
1687 SECUR32_arc4Process(helper->crypt.ntlm2.send_a4i,
1688 ((BYTE *)pMessage->pBuffers[token_idx].pvBuffer)+4, 8);
1689
1690
1691 return SEC_E_OK;
1692 }
1693 else
1694 {
1695 PBYTE sig;
1696 ULONG save_flags;
1697
1698 /* EncryptMessage always produces real signatures, so make sure
1699 * NTLMSSP_NEGOTIATE_SIGN is set*/
1700 save_flags = helper->neg_flags;
1701 helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1702 ntlm_CreateSignature(helper, pMessage, token_idx, NTLM_SEND, FALSE);
1703 helper->neg_flags = save_flags;
1704
1705 sig = pMessage->pBuffers[token_idx].pvBuffer;
1706
1707 SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1708 pMessage->pBuffers[data_idx].pvBuffer,
1709 pMessage->pBuffers[data_idx].cbBuffer);
1710 SECUR32_arc4Process(helper->crypt.ntlm.a4i, sig+4, 12);
1711
1712 if(helper->neg_flags & NTLMSSP_NEGOTIATE_ALWAYS_SIGN || helper->neg_flags == 0)
1713 memset(sig+4, 0, 4);
1714
1715 }
1716
1717 return SEC_E_OK;
1718 }
1719
1720 /***********************************************************************
1721 * DecryptMessage
1722 */
1723 static SECURITY_STATUS SEC_ENTRY ntlm_DecryptMessage(PCtxtHandle phContext,
1724 PSecBufferDesc pMessage, ULONG MessageSeqNo, PULONG pfQOP)
1725 {
1726 SECURITY_STATUS ret;
1727 ULONG ntlmssp_flags_save;
1728 PNegoHelper helper;
1729 int token_idx, data_idx;
1730 TRACE("(%p %p %d %p)\n", phContext, pMessage, MessageSeqNo, pfQOP);
1731
1732 if(!phContext)
1733 return SEC_E_INVALID_HANDLE;
1734
1735 if(MessageSeqNo)
1736 FIXME("Ignoring MessageSeqNo\n");
1737
1738 if(!pMessage || !pMessage->pBuffers || pMessage->cBuffers < 2)
1739 return SEC_E_INVALID_TOKEN;
1740
1741 if((token_idx = ntlm_GetTokenBufferIndex(pMessage)) == -1)
1742 return SEC_E_INVALID_TOKEN;
1743
1744 if((data_idx = ntlm_GetDataBufferIndex(pMessage)) ==-1)
1745 return SEC_E_INVALID_TOKEN;
1746
1747 if(pMessage->pBuffers[token_idx].cbBuffer < 16)
1748 return SEC_E_BUFFER_TOO_SMALL;
1749
1750 helper = (PNegoHelper) phContext->dwLower;
1751
1752 if(helper->neg_flags & NTLMSSP_NEGOTIATE_NTLM2 && helper->neg_flags & NTLMSSP_NEGOTIATE_SEAL)
1753 {
1754 SECUR32_arc4Process(helper->crypt.ntlm2.recv_a4i,
1755 pMessage->pBuffers[data_idx].pvBuffer,
1756 pMessage->pBuffers[data_idx].cbBuffer);
1757 }
1758 else
1759 {
1760 SECUR32_arc4Process(helper->crypt.ntlm.a4i,
1761 pMessage->pBuffers[data_idx].pvBuffer,
1762 pMessage->pBuffers[data_idx].cbBuffer);
1763 }
1764
1765 /* Make sure we use a session key for the signature check, EncryptMessage
1766 * always does that, even in the dummy case */
1767 ntlmssp_flags_save = helper->neg_flags;
1768
1769 helper->neg_flags |= NTLMSSP_NEGOTIATE_SIGN;
1770 ret = ntlm_VerifySignature(phContext, pMessage, MessageSeqNo, pfQOP);
1771
1772 helper->neg_flags = ntlmssp_flags_save;
1773
1774 return ret;
1775 }
1776
1777 static const SecurityFunctionTableA ntlmTableA = {
1778 1,
1779 NULL, /* EnumerateSecurityPackagesA */
1780 ntlm_QueryCredentialsAttributesA, /* QueryCredentialsAttributesA */
1781 ntlm_AcquireCredentialsHandleA, /* AcquireCredentialsHandleA */
1782 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1783 NULL, /* Reserved2 */
1784 ntlm_InitializeSecurityContextA, /* InitializeSecurityContextA */
1785 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1786 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1787 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1788 NULL, /* ApplyControlToken */
1789 ntlm_QueryContextAttributesA, /* QueryContextAttributesA */
1790 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1791 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1792 ntlm_MakeSignature, /* MakeSignature */
1793 ntlm_VerifySignature, /* VerifySignature */
1794 FreeContextBuffer, /* FreeContextBuffer */
1795 NULL, /* QuerySecurityPackageInfoA */
1796 NULL, /* Reserved3 */
1797 NULL, /* Reserved4 */
1798 NULL, /* ExportSecurityContext */
1799 NULL, /* ImportSecurityContextA */
1800 NULL, /* AddCredentialsA */
1801 NULL, /* Reserved8 */
1802 NULL, /* QuerySecurityContextToken */
1803 ntlm_EncryptMessage, /* EncryptMessage */
1804 ntlm_DecryptMessage, /* DecryptMessage */
1805 NULL, /* SetContextAttributesA */
1806 };
1807
1808 static const SecurityFunctionTableW ntlmTableW = {
1809 1,
1810 NULL, /* EnumerateSecurityPackagesW */
1811 ntlm_QueryCredentialsAttributesW, /* QueryCredentialsAttributesW */
1812 ntlm_AcquireCredentialsHandleW, /* AcquireCredentialsHandleW */
1813 ntlm_FreeCredentialsHandle, /* FreeCredentialsHandle */
1814 NULL, /* Reserved2 */
1815 ntlm_InitializeSecurityContextW, /* InitializeSecurityContextW */
1816 ntlm_AcceptSecurityContext, /* AcceptSecurityContext */
1817 ntlm_CompleteAuthToken, /* CompleteAuthToken */
1818 ntlm_DeleteSecurityContext, /* DeleteSecurityContext */
1819 NULL, /* ApplyControlToken */
1820 ntlm_QueryContextAttributesW, /* QueryContextAttributesW */
1821 ntlm_ImpersonateSecurityContext, /* ImpersonateSecurityContext */
1822 ntlm_RevertSecurityContext, /* RevertSecurityContext */
1823 ntlm_MakeSignature, /* MakeSignature */
1824 ntlm_VerifySignature, /* VerifySignature */
1825 FreeContextBuffer, /* FreeContextBuffer */
1826 NULL, /* QuerySecurityPackageInfoW */
1827 NULL, /* Reserved3 */
1828 NULL, /* Reserved4 */
1829 NULL, /* ExportSecurityContext */
1830 NULL, /* ImportSecurityContextW */
1831 NULL, /* AddCredentialsW */
1832 NULL, /* Reserved8 */
1833 NULL, /* QuerySecurityContextToken */
1834 ntlm_EncryptMessage, /* EncryptMessage */
1835 ntlm_DecryptMessage, /* DecryptMessage */
1836 NULL, /* SetContextAttributesW */
1837 };
1838
1839 #define NTLM_COMMENT \
1840 { 'N', 'T', 'L', 'M', ' ', \
1841 'S', 'e', 'c', 'u', 'r', 'i', 't', 'y', ' ', \
1842 'P', 'a', 'c', 'k', 'a', 'g', 'e', 0}
1843
1844 static CHAR ntlm_comment_A[] = NTLM_COMMENT;
1845 static WCHAR ntlm_comment_W[] = NTLM_COMMENT;
1846
1847 #define NTLM_NAME {'N', 'T', 'L', 'M', 0}
1848
1849 static char ntlm_name_A[] = NTLM_NAME;
1850 static WCHAR ntlm_name_W[] = NTLM_NAME;
1851
1852 /* According to Windows, NTLM has the following capabilities. */
1853 #define CAPS ( \
1854 SECPKG_FLAG_INTEGRITY | \
1855 SECPKG_FLAG_PRIVACY | \
1856 SECPKG_FLAG_TOKEN_ONLY | \
1857 SECPKG_FLAG_CONNECTION | \
1858 SECPKG_FLAG_MULTI_REQUIRED | \
1859 SECPKG_FLAG_IMPERSONATION | \
1860 SECPKG_FLAG_ACCEPT_WIN32_NAME | \
1861 SECPKG_FLAG_READONLY_WITH_CHECKSUM)
1862
1863 static const SecPkgInfoW infoW = {
1864 CAPS,
1865 1,
1866 RPC_C_AUTHN_WINNT,
1867 NTLM_MAX_BUF,
1868 ntlm_name_W,
1869 ntlm_comment_W
1870 };
1871
1872 static const SecPkgInfoA infoA = {
1873 CAPS,
1874 1,
1875 RPC_C_AUTHN_WINNT,
1876 NTLM_MAX_BUF,
1877 ntlm_name_A,
1878 ntlm_comment_A
1879 };
1880
1881 void SECUR32_initNTLMSP(void)
1882 {
1883 SECURITY_STATUS ret;
1884 PNegoHelper helper;
1885 static CHAR version[] = "--version";
1886
1887 SEC_CHAR *args[] = {
1888 ntlm_auth,
1889 version,
1890 NULL };
1891
1892 if((ret = fork_helper(&helper, ntlm_auth, args)) != SEC_E_OK)
1893 {
1894 /* Cheat and allocate a helper anyway, so cleanup later will work. */
1895 helper = HeapAlloc(GetProcessHeap(),0, sizeof(PNegoHelper));
1896 helper->major = helper->minor = helper->micro = -1;
1897 }
1898 else
1899 check_version(helper);
1900
1901 if( (helper->major > MIN_NTLM_AUTH_MAJOR_VERSION) ||
1902 (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION &&
1903 helper->minor > MIN_NTLM_AUTH_MINOR_VERSION) ||
1904 (helper->major == MIN_NTLM_AUTH_MAJOR_VERSION &&
1905 helper->minor == MIN_NTLM_AUTH_MINOR_VERSION &&
1906 helper->micro >= MIN_NTLM_AUTH_MICRO_VERSION) )
1907 {
1908 SecureProvider *provider = SECUR32_addProvider(&ntlmTableA, &ntlmTableW, NULL);
1909 SECUR32_addPackages(provider, 1L, &infoA, &infoW);
1910 }
1911 else
1912 {
1913 ERR("%s was not found or is outdated. "
1914 "Make sure that ntlm_auth >= %d.%d.%d is in your path.\n",
1915 ntlm_auth,
1916 MIN_NTLM_AUTH_MAJOR_VERSION,
1917 MIN_NTLM_AUTH_MINOR_VERSION,
1918 MIN_NTLM_AUTH_MICRO_VERSION);
1919 ERR("Usually, you can find it in the winbind package of your "
1920 "distribution.\n");
1921
1922 }
1923 cleanup_helper(helper);
1924 }
Maarten's multimedia branch